S peters co



(No Model.) 2 Sheets-Sheet 1;

R. D.O0DY.

LAMP.

606445- 1 m Patented June 28, 1898-;-

(No Model.) 2 Sheets-Sheet 2.

R. D. CODY.

LAMP.

N0.'606,445. Patented June 28,1898.

'deliers are connected.

lhvrrn STATES ROBERT D. CODY, OF CHICAGO, ILLINOIS.

LAMP.

SPECIFICATION forming part of Letters: Patent No. 606,445, dated June 28, 1898.

Application filed June 14,1897. Serial No. 640,682. (No model.)

To aZZ whom 'it may concern:

Be it known that I, Bonnier .JD. CODY, a citi-v zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

In the drawings, Figure 1 is an axial section of my improved lamp. Fig. 2 is an enlarged detail section of the controlling-valve and operating devices for the same. Fig. 3 is a general view in the nature of a diagram, showing the relation of the lamp having my improvement to the oil-supply system for the same and illustrating the fact that several chandeliers of the system may be at different heights. Fig. 4: is an elevation of the burner or lamp proper apart from the reservoir.

This invention relates to fluid-lamps which are adapted to be used in fixed position in connection with a remote source of supplyas, for example, in case ofa house which is piped for oil-supplyto the chandeliers of the various rooms. In such a system A represents a tank containing a supply of oil, which may be provided with the proper facilities for forcing the oil up through a pipe A to an elevated feed-tank A from which it passes into the system of service-supply represented by the pipe 13, to which at various points in the house at various elevations the several chan- It is especially desirable in such systems to prevent impurity which might form sediment reaching the lamps, particularly because the valves which control the supply to the several lamps or chandeliers, respectively, are liable to be choked or held open by such impurities, and for this purpose I interpose a sediment-collector 0 below the feed-tank A the oil passing down through the latter by way of the pipe 0 to the sediment-collector and up from the latter by way'ofthe pipe 0 to the servicepipe B, although the latter may be also connected directly with the feed-tank A as illustrated.

0* is a valve controlling communication between the feed-tank A and the sediment-collector O, and B is a valve controlling the supply in the service system B.

D represents a chandelier having two bnrners.- The burners D are connected with the central reservoir'l-E of the chandelier by sup- 'fl' '-.tubes DRl. The reservoir E is convenientl Y P y 5 made in two sections, parting at 6, so that the mechanism to be described may be placed within it. At the bottom of the reservoiris a central hub E,'into which is secured fast a tubular stem E around which the oil passes out through the tubes D? to the burners. Encompassing the tubular stem E is an annular float M. The stem E is slotted at a" near the lower end, and extending through the slots and fulcrumed on the stem are two similar levers F F, their fulcrums being at points diametrically opposite with respect to the tubular stem, so that the levers extend in opposite directions,both inwardly and outwardly, from these fulcrums.

G is a feed-pipe which is connected fixedly to the service-pipe B and depends vertically therefrom. At the lower end of said feedpipe G it is provided with an enlargement G, in the lower end of which is provided a plug G through which there is a vertical aperture G at the upper end of which there is a seat for the valve H. A cross-port G constitutes communication from the vertical port G to the exterior of the plug. The stem H of the valve I-I extends down through the plug and below the same and. at the lower end of said stem is provided ,witha horizontal disk H and abovethe valve 11, within the enlarged portion G of the feed-pipe, there is lodged a spiral spring acting upon the valve H with a tendencyto seat the same downwardly. The pipe'G has two exterior bosses G G at some distance apart toward the lower end, said bosses being adapted to fit snugly within the tubular stem of the chandelier, and said tubular stem is passed upward outside the feed-pipe G, which is thus telescoped within it, and the bosses G G afford guidance for the tubular stem on the pipe G. At a suitable height on the pipe G is a conical or tapering boss G and on the tubular stem E near the upper end, is fulcrumed a latch whose nose K takes through aslot E in the tubular stemE", said nose facing downwardly and being adapted to engage upon the shoulder formed by the upper end of the conical boss G, a spring K being provided to operate the latch to cause it to automatically engage with such shoulder, the slope of the boss Ice serving to force the latch out as the chandelier is pushed upward. Either of the bosses G serves as a stop with which the latch K engages when the chandelier is lowered. A chain K, extending down within reach of the operator, serves to release the latch when the chandelier is to be lowered. The latch K and the boss G are so located, respectively, that when the latch is engaged upon the shoulder of said boss the disk H at the end of the valve-stem 11 is depressed upon the inner ends of the levers F F, depressing said ends and elevating the longer arms of said levers to the position shown in full lines in Fig. 1. The spring I is sufficiently stiff to hold the valve I-I seated, notwithstanding the tendency of the weight of the levers F F, when thus elevated, to unseat the valve. The position of the chandelier when the latch is thus engaged above the boss G is the position of use that is, the position at which it is designed to hang whenthe burners are lighted. If when pushed to this position there is no oil in the reservoir, the float M, resting upon the longer arms of the levers F F and resisting their elevation, will cause the valve II to be opened by depressing the long arms of the levers, as shown in Fig. 2. The dotted lines of the float and levers in Fig. l are the positions which would result if the reservoir were empty of oil. The valve 11 being at this position held open, as seen in Fig. 2, oil will flow from the service-pipe down thrown the feed-pipe G, past said valve, out through the cross-port G, and through the slots 6" in the reservoir, causing the float to rise and the valve to gradually close until it is fully seated and the supply of oil shut off, the position being then that which is shown in full lines in Fig. 1. The level to which the oil is thus permitted to rise in the reservoir, it will be noticed, is determined accurately and positively by the construction, and this lever is then where it is suitable for feeding the burners. As fast as the consumption of. oil tends to lower the level of the oil in the reservoir the descent of the float tends to openthe valve, and thus admit the oil to maintain the level. When,

however, the chandelier is lowered on the feed-pipe G,this movement, carrying the disk H ofi from the inner ends of the levers F F, relieves the valve from the influence of the float and causes it to remain closed, so that when the chandelier is thus lowered for the purpose of attending to the burners the supply of oil is cut 0E and may be entirely withdrawn from the reservoir, if desired.

I claim 1. In combination with the burner, an oilreservoir fixed with respect thereto having an upwardly-extending tubular stem affording access into the reservoir; a fixed oil-supply pipe terminating downwardly and provided with a valve at its lower end, and adapted to be inserted with its valve through said tubular stem of the reservoir into the latter, and an annular float within the reservoir, through whose central opening the downwardly-terminating valved supply-pipe protrudes; a plurality of levers fulcrumed within the reservoir below the float adapted to act upon the downwardly-protruding stem of the valve, and to be acted upon at their opposite ends by the float; substantially as set forth.

, 2. In combination'with the reservoir, the tubular stem extending thereinto from the top and secured thereto at the bottom, the oilsupply pipe extending downwardly through the tubular stem, and a valve at the lower end of the pipe supported thereby and adapted to seat downwardly; the annular float without the encompassing tubular stem, and a plurality of levers fulcrumed within the reservoir underneath the float disposedradially with respect to the stem, and adapted at their inner ends to be encountered by the lower end of the valve-stem, and at their outer ends to be encountered by the float; and suitable disengageable means for securing the tubular stem to the depending supplypipe.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses,

at Chicago, Illinois, this 9th day of June,

ROBERT D. CODY.

Witnesses:

CHAs. S. BURTON, A. S. WELLS. 

